JSON to Python Class Generator
Convert JSON data to Python classes with dataclass, Pydantic, or plain class support. Generate type-hinted Python code from JSON samples.
Generated Python class will appear here...
Field names are converted to snake_case. Choose dataclass for simplicity, Pydantic for validation, or plain class for compatibility.
Why Use JSON to Python Class?
When working with JSON APIs in Python, you need classes to structure your data. This tool automatically generates Python classes from JSON, supporting modern patterns like dataclasses and Pydantic models with full type hints.
Frequently Asked Questions
What is the difference between dataclass and Pydantic?
Dataclasses are built into Python 3.7+ and provide simple data containers with auto-generated methods. Pydantic adds runtime validation, serialization, and is popular in FastAPI applications.
When should I use type hints?
Type hints improve code readability and enable IDE autocompletion and static analysis tools like mypy. They're recommended for all modern Python codebases.
How are nested objects handled?
Nested JSON objects are converted to separate Python classes. The nested classes are defined before the main class and properly referenced in type hints.